I load CD image compressed by WinRAR to Ifolder (manuals are included)

(Strug-G(L)_CD.iso).RAR - 11 parts
10*9.77+8.99 Mb

IHMO you better use Struc-G but not Struc-L. I knew nothing about Struc and Unix but succeed with installation on empty hard disk. So you can do that too. And AFAIK Struc-G is much more powerfull
Regards